Question

In ΔHIJ, the measure of ∠J=90°, HJ = 13, IH = 85, and JI = 84. What ratio represents the cosine of ∠I?

Answer 1

`cos(I)=(84)/(85)`

Explanation:

we know that

In the right triangle HIJ

`cos(I)=(JI)/(IH)` ----> by CAH (adjacent side divided by hypotenuse)

substitute the given values

`cos(I)=(84)/(85)`